Microbiology A Systems Approach
Chapter 6 (Part 1)
Absorb - correct answersto soak in
Acid fast Bacteria - correct answers-contain mycolic acid (a wax)
-resist decolorization by acids during staining
-can be a pathogen (tuberculosis, leprosy)
Adsorb - correct answersto attach
aphthovirus - ...
Microbiology A Systems Approach Chapter 6 (Part 1 ) Absorb - correct answersto soak in Acid fast Bacteria - correct answers -contain mycolic acid (a wax) -resist decolorization by acids during staining -can be a pathogen (tuberculosis, leprosy) Adsorb - correct answersto attach aphthovirus - correct answersfoot and mouth disease Archaea - correct a nswers -non pathogenic -don't interact with humans -prokaryotic cells -many are found in extreme environments Bacterial Chromosome - correct answers -single circular strand of DNA connected end to end -aggregated in a dense area of the cell -the nucleoid Bacteriophage - correct answersVirus that infects bacteria; discovered in 1915 by Twort and d'Herelle. Bacteriophages - correct answersinject their genes into the host cell capsid - correct answersProtein shell surrounds the nucleic acid Capsomeres - correct answersIdentical protein subunits that spontaneously self assemble to form the capsid Cell cytoplasm - correct answers -gelatinous solution that keeps everything suspended -site for biochemical and synthetic activities -70% - %80 water -contains larg er discrete cell masses(chromatin body, ribosomes granules, and actin strands) Cell Envelope - correct answers -protects the bacteria -allows bacteria to be considered a cell -composed of two or three layers Cell Wall - correct answers -made with peptidogl ycan - a lattice structure -made from two alternating amino sugars (NAG or NAM) connected by glcosidic bonds to D-amino acid or Di -amino acid. cell wall in algae - correct answers -varied in chemical composition -may contain cellulose, pectin cell wall in fungi - correct answers -thick inner layer of chitin or cellulose -thin outer layer of mixed glycans Cellular organisms - correct answershave a genome that consists of both DNA and RNA Charles Chamberland - correct answersinvented a filter with pores smaller than bacteria Chemotaxis - correct answersmovement of an organism in response to a chemical stimuli Chloroplasts - correct answers -found in plants and algae -this is where photosyn thesis occurs -double lipid bilayer -own genetic material -reproduce autonomously Chromatin - correct answers -DNA wrapped around protein cillia - correct answers -used for motion -shorter than flagellum -can also function as feeding and filtering structur es classification Systems in the Prokaryotae - correct answers -how related each bacteria is to each other. -one of the original classification systems Complex capsids - correct answersFound in bacteriophage, the viruses that infect bacteria; Have multipl e types of proteins; Take shapes that are not symmetrical Cytoskeleton - correct answers -long ploymers of proteins known as actins -arranged in the helical ribbons around the cell -contribute to cell shape Diploid - correct answers -two set of chromosomes
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